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Python Object-Oriented Python Instant Objects Master Class

Dmitriy Ignatiev
PLUS
Dmitriy Ignatiev
Courses Plus Student 6,236 Points
Posted by Dmitriy Ignatiev
Dmitriy Ignatiev
Courses Plus Student 6,236 Points

run_lap

Can't understand why it's not working

racecar.py 
class RaceCar:
    def __init__(self, color, fuel_remaining, **kwargs):
        self.color = color
        self.fuel_remaining = fuel_remaining
        self.laps = 0

        for key, value in kwargs.items():
            setattr(self, key, value)

    def run_lap(self, length):
        self.length = length
        self.fuel_remaining = self.length * 0.125
        self.laps +=1
        return self.fuel_remaining, self.laps

3 Answers

Steven Parker
Steven Parker
231,007 Points
Steven Parker
Steven Parker
231,007 Points

Three issues stand out at first glance:

  • the challenge said, "It'll take a length argument.", but your method takes no argument
  • you wrote "lenght" instead of "length"
  • you replace length with a calculation on fuel_remaining, instead of reducing fuel_remaining with a calculation using length

Also, I'm not sure if it causes an issue, but the return statement seems excessively indented.

Dmitriy Ignatiev
PLUS
Dmitriy Ignatiev
Courses Plus Student 6,236 Points
Dmitriy Ignatiev
Dmitriy Ignatiev
Courses Plus Student 6,236 Points

Hi, adjusted code above but it still doesn't work. Could you pls help me to understand why it is doesn't work. Thank you

Steven Parker
Steven Parker
231,007 Points
Steven Parker
Steven Parker
231,007 Points

You're nearly there...

Your fuel calculation is correct now, but you're simply replacing the fuel_remaining ("=") instead of reducing the fuel_remaining ("-=") by the calculation.